EP 4278735 A1 20231122 - METHODS AND SYSTEMS FOR EFFICIENT UPLINK (UL) SYNCHRONIZATION MAINTENANCE WITH A DEACTIVATED SECONDARY CELL GROUP (SCG)
Title (en)
METHODS AND SYSTEMS FOR EFFICIENT UPLINK (UL) SYNCHRONIZATION MAINTENANCE WITH A DEACTIVATED SECONDARY CELL GROUP (SCG)
Title (de)
VERFAHREN UND SYSTEME ZUR EFFIZIENTEN UPLINK-SYNCHRONISATIONSWARTUNG MIT EINER DEAKTIVIERTEN SEKUNDÄRZELLENGRUPPE (SCG)
Title (fr)
PROCÉDÉS ET SYSTÈMES PERMETTANT D'ENTRETENIR EFFICACEMENT UNE SYNCHRONISATION EN LIAISON MONTANTE (UL) AVEC UN GROUPE DE CELLULES SECONDAIRES (SCG) DÉSACTIVÉ
Publication
Application
Priority
- US 202163136531 P 20210112
- US 2022012075 W 20220112
Abstract (en)
[origin: WO2022155170A1] A wireless transmit/receive unit (WTRU) may receive indication information indicating an uplink (UL) configuration and one or more triggering conditions for transmission of UL signals. Based on reception of a deactivation command or fulfillment of a condition for WTRU-triggered deactivation of a secondary cell group (SCG), the WTRU may deactivate the SCG. Based on the UL configuration and the fulfillment of the one or more triggering conditions, the WTRU may transmit the UL signals via the SCG. The WTRU may receive, via a master cell group (MCG), an in-synch or out-of-synch indication for the SCG. Based on the reception of the out-of-synch indication including a timing advance (TA) delta value, the WTRU may update a UL TA towards the SCG based on the TA delta value. Using the updated UL TA towards the SCG, the WTRU may transmit one or more subsequent UL signals via the SCG.
IPC 8 full level
H04W 56/00 (2009.01)
CPC (source: EP IL KR)
H04L 5/0051 (2013.01 - KR); H04W 56/0005 (2013.01 - KR); H04W 56/001 (2013.01 - KR); H04W 56/0045 (2013.01 - EP IL); H04W 72/21 (2023.01 - KR); H04W 72/231 (2023.01 - KR); H04W 74/0833 (2013.01 - KR); H04W 76/15 (2018.01 - KR); H04W 76/28 (2018.01 - KR); Y02D 30/70 (2020.08 - EP IL)
Citation (search report)
See references of WO 2022155170A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022155170 A1 20220721; BR 112023013842 A2 20231003; CN 116918398 A 20231020; EP 4278735 A1 20231122; IL 304303 A 20230901; KR 20230131297 A 20230912; TW 202234914 A 20220901
DOCDB simple family (application)
US 2022012075 W 20220112; BR 112023013842 A 20220112; CN 202280014230 A 20220112; EP 22703743 A 20220112; IL 30430323 A 20230706; KR 20237027188 A 20220112; TW 111101265 A 20220112